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Fault code question

Spac_on_crack

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Vs ute
Hi all,

Have some queries about how the fault codes are stored and logged.

I brought a vs V6 ute that was difficult too start , spluttered with low idle and stalled, idle ramping up and down. Once warm is fine. Ran fault check and all clear.

But today when I moved the car the check engine light was flashing while it was spluttering, never did before at anytime that I've noticed. When I brought the car the battery had been disconnected for over a week, and it hasn't had a battery in it while I've been working on it as I only have one battery between 2 cars

Do the fault codes clear themselves once the battery has been off for a certain time ? I left the battery connected this time after seeing the engine flash light hoping it has something to show later when I run a fault check again.
 

losh1971

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Disconnecting power to the PCM resets it. It doesn't remove the code log.
 

BlackVXGTS

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Refer to the attached for more information. Note that the page breaks in pages 1-3 are a bit wonky, but I'm sure you will be able to cope.
 

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